“It’s time that we dealt with these old cases and dismissed them. It’s a burden to the NYPD,” he said as Manhattan Criminal Court Justice Tamiko Amaker granted his request to throw out the warrants. “These are individuals who’ve not been involved with the criminal justice system in the last 10 years.”

He said if they had been, those warrants would’ve been triggered.

In Brooklyn Criminal Court, cases 1 through 143,532 were called at the same time Wednesday morning before Judge Frederick Arriaga.

Acting Brooklyn DA Eric Gonzalez called prosecuting the summonses a “waste of resources,” adding that many of them could no longer be proven in a courtroom.

“I believe someone who owes a $25 fine should not be brought down to Central Booking and thrown into a cell next to a hardened criminal,” Gonzalez told Arriaga. “That’s not fair. That’s not justice.”

The Office of Court Administration has 90 days to seal the newly tossed cases. NYPD is prohibited from executing any of the warrants during that time period.

Last month, the district attorneys announced the large-scale dismissal to help clear the warrant backlog.

There are about 1.5 million open summons warrants citywide.

Many of the summonses tossed Wednesday are for low-level offenses that are no longer prosecuted by DAs in certain — but not all — boroughs, like public urination, drinking alcohol in public, possession of small amounts of marijuana and taking up more than one seat on the subway.

“These warrants can derail lives, disrupt families, and lead to job loss and missed opportunity to contribute meaningfully to society,” Mayor de Blasio said in a statement. “We are all safer when our police officers are focused on preventing crime and arresting dangerous criminals instead of processing the arrests of those who pose no threat to public safety.”

The Richmond County DA’s Office opted not to take part in the mass dismissal. There are about 30,000 open summons warrants on Staten Island, according to a DA spokesman.

DA Michael McMahon noted that the warrants were issued to people who failed to appear in court.

“While I have supported holding our Fresh Start events on Staten Island where individuals can take personal responsibility and request that their summons warrant be dismissed, I believe that issuing blanket amnesty for these offenses is unfair to those citizens who responsibly appear in court and sends the wrong message about the importance of respecting our community and our laws,” he said in a statement.